ProMag COL03 1911 Government Magazine 8rd .45 ACP Blued Steel

The ProMag COL03 delivers reliable feeding and extended capacity for 1911 Government pistols chambered in .45 ACP. This 8-round magazine increases standard capacity by one round while maintaining the classic blued steel construction that matches traditional 1911 aesthetics.

What Makes This Different

Unlike standard 7-round magazines, the COL03 provides an additional round without extending beyond the grip frame. The heat-treated steel body resists deformation under heavy use, while the precision-wound spring maintains consistent tension through thousands of loading cycles. ProMag's manufacturing process ensures dimensional accuracy that matches original equipment specifications.

Key Features

• 8-round capacity increases firepower by one round over standard magazines
• Heat-treated steel construction withstands repeated loading and field stripping
• Blued finish matches traditional 1911 Government model aesthetics
• Compatible with full-size 1911 Government frames in .45 ACP
• Precision-wound spring maintains feeding reliability
• Standard base plate design fits existing magazine pouches
• Drop-free design ensures positive ejection during tactical reloads

Field testing demonstrates consistent feeding with various .45 ACP ammunition weights from 185 to 230 grains. The magazine functions reliably in competitive shooting environments where rapid reloads are critical. Law enforcement agencies report dependable performance during qualification courses and duty carry. The steel construction handles temperature extremes without spring fatigue or feeding malfunctions.

Technical Specs

• Capacity: 8 rounds
• Caliber: .45 ACP
• Material: Heat-treated steel body with blued finish
• Compatibility: 1911 Government full-size frames
• Overall length: Approximately 3.5 inches
• Weight: 4.2 ounces (empty)
• Spring: Music wire construction
• Follower: Steel with anti-tilt design

The COL03 represents proven magazine technology adapted for modern 1911 users who demand both reliability and increased capacity. ProMag backs this magazine with rigorous quality control testing to ensure consistent performance across production runs.